C examples for wctype.h:wctype
| Item | Value |
|---|---|
| type | function |
| from | <cwctype> |
Return character property
wctype_t wctype (const char* property);
Returns a value in type wctype_t to identify the character category.
| string passed as property | description | equivalent function |
|---|---|---|
| "alnum" | alphanumerical character | iswalnum |
| "alpha" | letter character | iswalpha |
| "blank" | blank character | iswblank |
| "cntrl" | control character | iswcntrl |
| "digit" | decimal digit character | iswdigit |
| "graph" | character with graphical representation | iswgraph |
| "lower" | lowercase letter character | iswlower |
| "print" | printable character | iswprint |
| "punct" | punctuation character | iswpunct |
| "space" | white-space character | iswspace |
| "upper" | uppercase letter character | iswupper |
| "xdigit" | hexadecimal digit character | iswxdigit |
| Parameter | Description |
|---|---|
| property | A string identifying a character category. |
type wctype_t identifying a character category.
#include <stdio.h> #include <wctype.h> int main ()/*from w ww . j a v a 2 s . c o m*/ { int i=0; wchar_t str[] = L"Test String.\n"; wchar_t c; wctype_t check = wctype("lower"); wctrans_t trans = wctrans("toupper"); while (str[i]) { c = str[i]; if (iswctype(c,check)) c = towctrans(c,trans); putwchar (c); i++; } return 0; }